Unitree Robotics’ Shanghai initial public offering (IPO) was more than 5,500 times oversubscribed by retail investors as optimism about fast stock gains and Chinese robot demand outweighed concerns about a US import ban. The 6.1 billion yuan (US$900 million) share sale drew 9.8 million orders from individual investors, the robot maker said in a statement on Monday. Just 0.018 per cent of orders will be fulfilled, even after the Hangzhou-based company boosted the number of retail shares by half...